JPS60176087A - Process data display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a process data display device for displaying process data in the form of a chart on a two-dimensional display such as a CRT display.

(B) Conventional technology Conventionally, process data is displayed in a chart format←multi-color on a CRT screen, and the process data is stored in memory from the past to the present, and past data is displayed on the CRT screen as necessary. There is a recorder that can display the However, this conventional CR7 display type recorder had a drawback in that when past data was displayed, it was unclear how the current data was changing.

(C) Purpose In view of the above, an object of the present invention is to provide a process data display device that can monitor current data even when displaying past data.

(d) Configuration In order to achieve the above object, the process data display device of the present invention is provided with an input means for specifying and inputting a normal (current) display mode and a past display mode, and the past display mode is specified by this input means. When input, the two-dimensional display is configured to form a main display section that displays past data and a sub display section that displays current data.

(E) Examples The present invention will be explained in more detail with reference to Examples below.

FIG. 1 is a block diagram of a process data display device showing one embodiment of the present invention. In the same figure, 1.2
and 3 indicate the data source for each channel of the process,
The process data from these data sources 1.2 and 3 are:
The data is taken into the CPU 5 via the boat 4. Reference numeral 6 denotes a memory, which stores process data taken into the CPU 5 for each channel from the past to the present.

7 is a CR7 display, which is provided to display process data of each channel at multiple points. This CR7
The display 7 is capable of displaying process data for each channel in different colors.

Reference numeral 8 is a key human power section, which is used to specify whether the process data displayed on the CR7 display 7 is current data or past data, that is, whether the display is in normal display mode or past display mode. a right shift key 10 for moving display data along the time axis in past display mode; It is equipped with a left shift key 11, a numeric keypad 12, etc.

The CPU 5 has a function of controlling process data import and data display operations.

Further, in the process data display device of this embodiment, as shown in FIG. 2, the current process data of each channel is displayed on the entire screen of the CR7 display 7. ing.

Furthermore, in the past display mode, as shown in FIG.
' , m' are displayed, and the current data [1
1. ■ is now displayed.

Next, the operation of the process data display device according to the embodiment will be explained with reference to the flowchart shown in FIG.

When the operation starts, first in step STI the CPU5
The built-in timer counts. This timer is provided for counting time for sampling and capturing process data at predetermined time intervals. Step ST2
Then, it is determined whether the timer has timed up or not. If the timer has not timed up, it is then determined in step ST3 whether or not the past display mode is set. If past key 9 is not operated,
This determination is NO, and the process moves to the next step ST4, where the current data is displayed as shown in FIG.
Return to TI. Then, the above operation is repeated until the timer times out.

When the timer counts up, the determination in step ST2 becomes YES, and the process moves to step ST5, where data from the process data source 1.2.3 is fetched and stored as new data in the memory 6, followed by step ST3. The operation proceeds to step ST4, and current data including newly stored data is displayed.

Next, if you wish to investigate past data, operate the past key 9 once; this operation enters the past display mode, the determination in step ST3 becomes YES, and the CR7 display 7 displays the data shown in FIG. A main display section 7a and a sub-display section 7b are formed in this way, and past data is displayed in the form of a chart on the main display section 7a, and current data is displayed on the sub-display section 7b (step 5T6). To display past data for a target period, period data is input using the numeric keypad 12, but it is also possible to move the display data on the main display section 7a by appropriately operating the right shift key 10 or left shift key 11. good. In this case, even if the past data is displayed and investigated, the current data is displayed on the sub-display section 7b, so the change in the current data can always be known.

If you wish to return to the normal current data display, operate the past key 9 once again to cancel the past display mode.

In the above embodiment, the sub-display section 7b is provided at the lower right corner of the screen of the CR7 display;
b may be provided at the upper right corner, lower left corner, or upper left corner of J.

Further, the sub display section 7b is a main display section 7 as shown in FIG.
It may be provided at the right end of a to display current data shorter than usual.

Furthermore, the current data when past data is displayed may be displayed numerically at the bottom of the screen, for example, instead of being displayed in a chart form.

Further, in the above embodiments, a CRT display is used as the display, but a two-dimensional display formed of other display materials such as liquid crystal, EL, etc. may be used instead.

(f) Effects According to the process data display device of the present invention, current data is displayed even in the past display mode, so you can proceed with the investigation of past data with peace of mind without losing track of the trends in the current data. .

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a process data display device showing one embodiment of the present invention, FIG. 2 is a diagram showing the display state of the same process data display device in the normal display mode, and FIG. 3 is a diagram showing the display state of the same process data display device in the normal display mode. FIG. 4 is a diagram showing the display state in the past display mode of another embodiment. FIG. 5 is a diagram showing the operation of the process data display device of the embodiment shown in FIG. 1. FIG. 1-2.3: Data source, 5: CPU. 6: Memory, 7: CR7 display, 7a: Main display section, 7b = Sub-display section, 8: Key manual section, 9: Past key. Patent applicant Shimadzu Corporation Representative Patent attorney Shigeru Nakamura

Claims (1)

[Claims] (1) A process data display device that displays continuously changing process data on a two-dimensional display, which is equipped with an input means for specifying and inputting a normal display mode and a past display mode. 1. A process data display device, characterized in that when a specified input is made, the two-dimensional display is formed with a main display section that displays past data, and a sub-display section that displays current data.